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Altoona Water Auth

Water Supply, Duncansville, Pennsylvania. NPDES permit PA0085111 expired Mar 31, 2026; its limits still apply. Last 12 months: no values over a limit, 8 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (8 values), form S twice a year, form Y yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 15 reports late

Limits in force (13)

ParameterStatisticLimitMonths
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedannual averagereport only (mg/L)all year
Nitrogen, total [as N]annual averagereport only (mg/L)all year
Phosphorus, total [as P]annual averagereport only (mg/L)all year
Iron, total [as Fe]semi-annual averagereport only (mg/L)all year
Manganese, total [as Mn]semi-annual averagereport only (mg/L)all year
Aluminum, total [as Al]monthly average≤ .26 mg/Lall year
Aluminum, total [as Al]daily maximum≤ .52 mg/Lall year
Aluminum, total [as Al]monthly averagereport only (lb/d)all year
Aluminum, total [as Al]daily maximumreport only (lb/d)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year

How strict are these limits?

Cited limits by parameter: Pennsylvania's rules and the federal ones.

Same industry: the 214 Water Supply permits in Pennsylvania.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0085111 · MCP: https://passage-data.com/mcp